for i in *.SnowTemp ; do cat 200805/mmsa_RH_TEMPERATURES.dat.20080501-1202 | cut -f1,5-12 -d"," | head -2 | tail -1 >> $i ; done

##This doesn't get headers.
 for i in 2008??; do for j in $i/mmsa_RH* ; do cut -f1,5-12 -d"," $j| grep 2008- >> $i.SnowTemp ; done ; done